/**
* Initializes Goutte driver.
*
* @param Symfony\Component\BrowserKit\Client $client BrowserKit client instance
*/
public function __construct(Client $client = null)
{
// create new kernel, that could be easily rebooted
$class = get_class($client->getKernel());
$kernel = new $class('Behat', 'config.yml', $client->getKernel()->getEnvironment(), $client->getKernel()->isDebug());
$kernel->boot();
parent::__construct($kernel->getContainer()->get('test.client'));
}